Home / 65,402.13-90,192.94-42,760.53

Finding the Fourth Proportional to 65,402.13, 90,192.94 and 42,760.53

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Solution

The fourth proportional to 65,402.13, 90,192.94 and 42,760.53 is: 58,969.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,402.13 : 90,192.94 = 42,760.53 : x
  2. Step 2: Convert to fraction form
    65,402.13/90,192.94 = 42,760.53/x
  3. Step 3: Cross multiply
    65,402.13x = 90,192.94 × 42,760.53
  4. Step 4: Simplify right side
    65,402.13x = 3,856,698,303.95
  5. Step 5: Solve for x
    x = 3,856,698,303.95/65,402.13
  6. Step 6: Final answer
    x = 58,969.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.